Justin Bieber fans like to say that, but when you look at his writing credits, he hasn't cowritten much of his music at all. He has written almost none of his biggest hits and singles. On quite a few songs he isn't credited last or second to last.
i don't like him for his music i can assure you of that and i did check his writing credits before posting in here as i am good like that and he has written the majority of his songs including his biggest hits . laughing as you putting me down as a bieber fan just because i mention some factual information